Method and apparatus for unequal error protection in transmitting uncompressed video with various type over wideband high frequency wireless system

Abstract

Disclosed are an Unequal Error Protection (UEP) apparatus and method thereof for transmitting various types of uncompressed video signals in a broadband high frequency wireless system. The UEP apparatus may include a UEP transmission controller to verify a bit separation point of separating a color depth and priority for each pixel element being composed of a video data pixel when video data is inputted, and to control an error correction coding of correcting relatively many errors to be used in information with a high priority for each pixel element, a bit separator to separate the video data pixel through a control of the UEP transmission controller based on the priority for each pixel element, and a channel coding unit to use a corresponding error correction coding through the control of the UEP transmission controller based on the priority for each pixel element.

What is claimed is: 
     
       1. An Unequal Error Protection (UEP) method in a transmission apparatus, the UEP method comprising:
 verifying a bit separation point for separating a bit field size responsive to color depth 
 and a color priority for each pixel element being comprised of a pixel of video data 
 where the field size is greater than or equal to one and less than a pixel element size; 
 classifying each pixel of the video data based on the priority for each pixel element; 
 and performing an error correction coding for correcting relatively many errors occurring in information responsive to the color priority for each pixel element 
 and performing modulation of the video data. 
 
     
     
       2. The UEP method of  claim 1 , wherein the verifying transmits/receives a UEP negotiating message including UEP reception apparatus information, pixel component information, bit field size information, and bit separation point information to thereby negotiate the bit field size and bit separation point for each pixel element. 
     
     
       3. The UEP method of  claim 1 , further comprising: separating, for each priority, bits on which the error correction coding is performed based on the priority to generate the bits as a frame, and modulating the frame in a predetermined modulation scheme corresponding to the priority to generate UEP video data. 
     
     
       4. The UEP method of  claim 3 , wherein the UEP video data includes priority information indicating a priority of the UEP video data, sequence number information indicating a transmission order, modulation and coding scheme (MCS) index information indicating a modulation and channel coding scheme of the video data, pixel component information, and bit field size information. 
     
     
       5. The UEP method of  claim 1 , further comprising: generating, in a Media Access Control (MAC) upper layer, a data frame including bits on which the error correction coding is performed based on the priority. 
     
     
       6. The UEP method of  claim 5 , wherein the data frame includes, in a header of the data frame, a video type header including UEP type information, bit field size information, bit separation point information, and
 sequence number information indicating a transmission order, the bit field size information, the bit separation point information, and 
 the sequence number information are uniformly applied to all sub-packets of the data frame, and 
 each of the sub-packets has a sub-packet header including a sub-packet type of information about the pixel component, and 
 the priority, the sub-packet header being included in the header of the data frame. 
 
     
     
       7. discloses - An Unequal Error Protection UEP method in a reception apparatus,
 the UEP method comprising: verifying a bit separation point for separating a bit field size responsive to color depth 
 and a color priority for each pixel element being comprised of a pixel 
 where the field size is greater than or equal to one and less than a pixel element size; 
 performing a demodulation on UEP video data according to priority information of the UEP video data included in a header of the UEP video data 
 when the UEP video data is received; 
 performing an error correction coding with respect to the UEP video data on which the demodulation is performed according to the priority information, 
 the error correction coding being classified according to the color priority information; and 
 combining, for each pixel element, the data on which the error correction coding is performed based on the bit field size and bit separating point. 
 
     
     
       8. The UEP method of  claim 7 , wherein the verifying transmits/receives a UEP negotiating message including UEP transmission apparatus information, pixel component information, bit field size information, and
 bit separation point information to thereby negotiate the bit field size and bit separation point for each pixel element. 
 
     
     
       9. The UEP method of  claim 7 , wherein the UEP video data includes priority information indicating a priority of the UEP video data, sequence number information indicating a transmission order, MCS index information indicating a modulating and channel coding scheme of the video data, pixel component information, and bit field size information.